Radiodensity
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Utilização da tomografia computadorizada quantitativa como teste de resistência para avaliação de placas ósseas
Quantitative computed tomography was used to determine the radiodensity of bony plates. The CT scans provided information regarding radiodensity of bony plates and allowed to verify the uniformity of bone mineral density in their scope. The proposed methodology should be considered as another tool for determining the resistance of these biomaterials.
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2012-06
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2. Abdominal adiposity, insulin and bone quality in young male rats fed a high-fat diet containing soybean or canola oil
OBJECTIVES: A low ratio of omega-6/omega-3 polyunsaturated fatty acids is associated with healthy bone properties. However, fatty diets can induce obesity. Our objective was to evaluate intra-abdominal adiposity, insulin, and bone growth in rats fed a high-fat diet containing low ratios of omega-6/omega-3 provided in canola oil. METHODS: After weaning, rats
Clinics. Publicado em: 2011
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3. Avaliação da radiodensidade de cimentos resinosos / Evaluation of resin cements radiodensity
Um cimento resino ideal, deve ser mais radiopaco que as estruturas dentárias, para facilitar a distinção entre as estruturas no exame radiográfico. Entretanto, a composição dos cimentos resinosos apresenta forte influência em sua radiodensidade. O objetivo desse estudo foi avaliar a radiodensidade de 7 cimentos resinosos (n=8): Panavia F (PA- Kuraray
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2010
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4. Influence of powder/liquid ratio on the radiodensity and diametral tensile strength of glass ionomer cements
Clinicians tend to make reductions in glass ionomer power/liquid (P/L) ratios since some materials are difficult to mix and flow into small cavities, grooves or pits. In general, changing the P/L ratio decreases the physical and mechanical properties of conventional glass ionomer cements (GICs) and resin modified glass ionomer cements (RMGICs), but alteratio
Journal of Applied Oral Science. Publicado em: 2010-12
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5. Radiodensity evaluation of dental impression materials in comparison to tooth structures
In the most recent decades, several developments have been made on impression materials' composition, but there are very few radiodensity studies in the literature. It is expected that an acceptable degree of radiodensity would enable the detection of small fragments left inside gingival sulcus or root canals. OBJECTIVE: The aim of this study was to determin
Journal of Applied Oral Science. Publicado em: 2010-10
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6. Construction of a copper stepwedge with aluminum equivalent mean gray values
OBJECTIVES: To produce a copper (Cu) stepwedge with aluminum (Al) equivalent mean gray values (MGV). MATERIAL AND METHODS: The thicknesses of Cu steps that were equivalent to those of the Al were formulated using the X-ray attenuation properties of the materials. The Al and fabricated Cu stepwedges were radiographed, but the MGVs of the Cu stepwedge were mis
Journal of Applied Oral Science. Publicado em: 2010-08
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7. Comparative analysis of human and bovine teeth: radiographic density
Since bovine teeth have been used as substitutes for human teeth in in vitro dental studies, the aim of this study was to compare the radiographic density of bovine teeth with that of human teeth to evaluate their usability for radiographic studies. Thirty bovine and twenty human teeth were cut transversally in 1 millimeter-thick slices. The slices were X-ra
Brazilian Oral Research. Publicado em: 2008-12
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8. Propriedades mecanicas e radiodensidade de esmalte, de dentina e de diferentes materiais odontologicos / Mechanical properties and radiodensity of enamel and dentin, and different dental materials
Dental materials development has stimulated the study of their physical and mechanical properties and the substitution of human teeth in dental researches makes necessary the analysis of physical, microstructural and mechanical properties of bovine teeth, varying the age of animals and comparing the results with those from human teeth. In order to fulfill al
Publicado em: 2007
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9. Is stone radiodensity a useful parameter for predicting outcome of extracorporeal shockwave lithotripsy for stones < 2 cm?
PURPOSE: Several factors determine the success of extracorporeal shockwave lithotripsy (SWL) for kidney stones: stone size, stone location within the collecting system, stone type, and the SWL machine used. It has been suggested that stone radiodensity, as determined either by plain radiography or computed tomography attenuation values, may be an independent
International braz j urol. Publicado em: 2005-02
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10. Alexander's disease: case report including histopathological and electron microscopic features.
We report a case of Alexander's disease in a black South African boy of 9 years. The child presented with a grossly abnormal stooped posture, generalised weakness, and slurred nasal speech. Computerised tomography revealed diffuse low radio-density confined to the white matter, and enlarged ventricles. Cerebral biopsy confirmed the diagnosis. The histopathol
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11. Differential marking of excision planes in screened breast lesions by organically coloured gelatins.
Traditionally India ink has been used to mark surgical resection margins, more recently with acetone to aid drying. Alternative methods have been suggested in recent months, including solutions of alcian blue, and Tippex. These methods use one colour only and Tippex is radiodense. Artists' pigments have been used, but their radiodensity makes them unsuitable
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12. Nasal Granuloma Caused by Scedosporium apiospermum in a Dog
A 10-month-old male American Staffordshire terrier was presented to the Autonomous University of Barcelona Veterinary Teaching Hospital because of a 6-month history of a mucopurulent bilateral nasal discharge. The dog had not responded to antibiotics. A follow-up X ray revealed a mixed pattern of osteolysis and increased radiodensity confined to the nasal ca
American Society for Microbiology.